private static readonly string[,] s_fgbgAndColorStrings = new string[2, 16]; // 2 == fg vs bg, 16 == ConsoleColor values
public static bool TryGetSpecialConsoleKey(char[] givenChars, int startIndex, int endIndex, out ConsoleKeyInfo key, out int keyLength)
{
int unprocessedCharCount = endIndex - startIndex;
int minRange = TerminalFormatStrings.Instance.MinKeyFormatLength;
if (unprocessedCharCount >= minRange)
{
int maxRange = Math.Min(unprocessedCharCount, TerminalFormatStrings.Instance.MaxKeyFormatLength);
for (int i = maxRange; i >= minRange; i--)
{
var currentString = new StringOrCharArray(givenChars, startIndex, i);
// Check if the string prefix matches.
if (TerminalFormatStrings.Instance.KeyFormatToConsoleKey.TryGetValue(currentString, out key))
{
keyLength = currentString.Length;
return(true);
}
}
}
key = default(ConsoleKeyInfo);
keyLength = 0;
return(false);
}
private static readonly string[,] s_fgbgAndColorStrings = new string[2, 16]; // 2 == fg vs bg, 16 == ConsoleColor values
public static bool TryGetSpecialConsoleKey(char[] givenChars, int startIndex, int endIndex, out ConsoleKeyInfo key, out int keyLength)
{
int unprocessedCharCount = endIndex - startIndex;
// First process special control character codes. These override anything from terminfo.
if (unprocessedCharCount > 0)
{
// Is this an erase / backspace?
char c = givenChars[startIndex];
if (c != s_posixDisableValue && c == s_veraseCharacter)
{
key = new ConsoleKeyInfo(c, ConsoleKey.Backspace, shift: false, alt: false, control: false);
keyLength = 1;
return(true);
}
}
// Then process terminfo mappings.
int minRange = TerminalFormatStrings.Instance.MinKeyFormatLength;
if (unprocessedCharCount >= minRange)
{
int maxRange = Math.Min(unprocessedCharCount, TerminalFormatStrings.Instance.MaxKeyFormatLength);
for (int i = maxRange; i >= minRange; i--)
{
var currentString = new StringOrCharArray(givenChars, startIndex, i);
// Check if the string prefix matches.
if (TerminalFormatStrings.Instance.KeyFormatToConsoleKey.TryGetValue(currentString, out key))
{
keyLength = currentString.Length;
return(true);
}
}
}
// Otherwise, not a known special console key.
key = default(ConsoleKeyInfo);
keyLength = 0;
return(false);
}
private static readonly string[,] s_fgbgAndColorStrings = new string[2, 16]; // 2 == fg vs bg, 16 == ConsoleColor values
public static bool TryGetSpecialConsoleKey(char[] givenChars, int startIndex, int endIndex, out ConsoleKeyInfo key, out int keyLength)
{
int unprocessedCharCount = endIndex - startIndex;
int minRange = TerminalFormatStrings.Instance.MinKeyFormatLength;
if (unprocessedCharCount >= minRange)
{
int maxRange = Math.Min(unprocessedCharCount, TerminalFormatStrings.Instance.MaxKeyFormatLength);
for (int i = maxRange; i >= minRange; i--)
{
var currentString = new StringOrCharArray(givenChars, startIndex, i);
// Check if the string prefix matches.
if (TerminalFormatStrings.Instance.KeyFormatToConsoleKey.TryGetValue(currentString, out key))
{
keyLength = currentString.Length;
return true;
}
}
}
key = default(ConsoleKeyInfo);
keyLength = 0;
return false;
}
private static readonly string[,] s_fgbgAndColorStrings = new string[2, 16]; // 2 == fg vs bg, 16 == ConsoleColor values
public static bool TryGetSpecialConsoleKey(char[] givenChars, int startIndex, int endIndex, out ConsoleKeyInfo key, out int keyLength)
{
int unprocessedCharCount = endIndex - startIndex;
// First process special control character codes. These override anything from terminfo.
if (unprocessedCharCount > 0)
{
// Is this an erase / backspace?
char c = givenChars[startIndex];
if (c != s_posixDisableValue && c == s_veraseCharacter)
{
key = new ConsoleKeyInfo(c, ConsoleKey.Backspace, shift: false, alt: false, control: false);
keyLength = 1;
return true;
}
}
// Then process terminfo mappings.
int minRange = TerminalFormatStrings.Instance.MinKeyFormatLength;
if (unprocessedCharCount >= minRange)
{
int maxRange = Math.Min(unprocessedCharCount, TerminalFormatStrings.Instance.MaxKeyFormatLength);
for (int i = maxRange; i >= minRange; i--)
{
var currentString = new StringOrCharArray(givenChars, startIndex, i);
// Check if the string prefix matches.
if (TerminalFormatStrings.Instance.KeyFormatToConsoleKey.TryGetValue(currentString, out key))
{
keyLength = currentString.Length;
return true;
}
}
}
// Otherwise, not a known special console key.
key = default(ConsoleKeyInfo);
keyLength = 0;
return false;
}
